<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Page Title</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" type="text/css" media="screen" href="main.css" />
    <script src="main.js"></script>
    <style>
          [type=password]{
        width:600px;
        height:20px;
    }
    .zzz:focus{
        width: 200px;
        height: 50px;
    }
    input[type=text]{
        width: 200px;
        height:20px;
    }
    input[name*="pwd"]{
        height: 100px;
    }
    html:root{
        background-image:url("img/misaka001.png");
    }

    </style>
</head>
<body>
    <ul>
           <li>1345</li>
           <li>6789</li>
           选择<input type="text" class="zzz" name="pwd_b"><br>
           用户<input type="text" calss="user" style="width:500px;height:15px;" name="pwd_a"><br>
           密码<input type="password" name="pwd" id="pwd1" >

        </ul>
</body>
</html>